Clotting Screen

Container: Citrate (Blue top)

Sample type: Whole Blood

Test name: Clotting Screen

Condition / Indication: The clotting screen consists of the Prothrombin Time (PT) which is used as a screening test to assess the function of the extrinsic clotting pathway; the Activated Partial Thromboplastin Time (APTT) to assess the intrinsic clotting pathway. For Fibrinogen, please refer to Clauss Fibrinogen.

Special precautions & notes: Cannot use underfilled, overfilled, clotted , contaminated or samples aged (>24 hours). Poorly taken blood sample leading to sample activation.

Reference range: PT 9.5 -13 secs, APTT 25-37 secs (new reference range from 24/04/23)

Container: Citrate (Blue top)

Ideal volume (mL): 2.7 mL

Discipline: Haematology

Turnaround time: 24 hours